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BOSTON MARATHON 2023

Mary Morrison

Bib: 22670•F

KS

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:44/mi
30:15
↑ 97↓ 3451.5%
10K· 6.21 mi
9:12/mi
58:50
↑ 79↓ 1380.4%
15K· 9.32 mi
9:03/mi
1:26:58
↑ 67↓ 78
20K· 12.43 mi
9:21/mi
1:56:01
↑ 106↓ 860.1%
Half· 13.11 mi
9:27/mi
2:02:28
↑ 19↓ 370.5%
25K· 15.53 mi
9:50/mi
2:26:18
↑ 66↓ 880.2%
30K· 18.64 mi
10:15/mi
2:58:09
↑ 181↓ 1480.2%
20M
10:54/mi
3:12:58
↑ 64↓ 500.2%
21M
11:07/mi
3:24:05
↑ 106↓ 241.6%
35K· 21.75 mi
9:25/mi
3:31:08
↑ 17↓ 861.7%
23M
10:06/mi
3:43:47
↑ 23↓ 630.6%
24M
9:41/mi
3:53:28
↓ 821.3%
40K· 24.85 mi
9:52/mi
4:01:54
↓ 200.3%
25.2M
10:35/mi
4:05:33
↑ 13↓ 160.2%
Finish· 26.22 mi
10:03/mi
4:15:47
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:28
Pace9:21 /mi
2nd Half
Distance13.11 mi
Time2:13:19
Pace10:10 /mi
📊Positive Split: 8.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:5930:159:4430:15
9:44
-
10K
6.21 mi12:17:3458:509:2828:35
9:12
-0:32
15K
9.32 mi12:45:421:26:589:2028:08
9:03
-0:09
20K
12.43 mi13:14:451:56:019:2029:03
9:21
+0:18
Half
13.11 mi13:21:122:02:289:216:27
9:27
+0:06
25K
15.53 mi13:45:022:26:189:2523:50
9:50
+0:23
30K
18.64 mi14:16:532:58:099:3331:51
10:15
+0:25
20M
20.00 mi14:31:423:12:589:3914:49
10:54
+0:39
21M
21.00 mi14:42:493:24:059:4311:07
11:07
+0:13
35K
21.75 mi14:49:523:31:089:427:03
9:25
-1:42
23M
23.00 mi15:02:313:43:479:4412:39
10:06
+0:41
24M
24.00 mi15:12:123:53:289:449:41
9:41
-0:25
40K
24.85 mi15:20:384:01:549:448:26
9:52
+0:11
25.2M
25.20 mi15:24:174:05:339:453:39
10:35
+0:43
Finish
26.22 mi15:34:314:15:479:4610:14
10:03
-0:32

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

9:03 /mi

Average Pace

9:46 /mi

Slowest Pace

11:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:39:16

39% of race

Time at Steady Pace

1:35:05

37% of race

Time at Slower Pace

1:01:26

24% of race

Average Pace: 9:45 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:48:5930:159:4430:15
9:44
#22764
10K
6.21 mi12:17:3458:509:2828:35
9:12
#22255
15K
9.32 mi12:45:421:26:589:2028:08
9:03
#21780
20K
12.43 mi13:14:451:56:019:2029:03
9:21
#21630
Half
13.11 mi13:21:122:02:289:216:27
9:27
#21641
25K
15.53 mi13:45:022:26:189:2523:50
9:50
#21639
30K
18.64 mi14:16:532:58:099:3331:51
10:15
#21639
20M
20.00 mi14:31:423:12:589:3914:49
10:54
#21726
21M
21.00 mi14:42:493:24:059:4311:07
11:07
#21713
35K
21.75 mi14:49:523:31:089:427:03
9:25
#21630
23M
23.00 mi15:02:313:43:479:4412:39
10:06
#21552
24M
24.00 mi15:12:123:53:289:449:41
9:41
#21473
40K
24.85 mi15:20:384:01:549:448:26
9:52
#21394
25.2M
25.20 mi15:24:174:05:339:453:39
10:35
#21333
Finish
26.22 mi15:34:314:15:479:4610:14
10:03
#21355
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi227649267926720765(Top 78%)8104(Top 71%)8104(Top 446%)
10K6.21 mi3.10 mi22255+5098977+2908977+29021629(Top 81%)8619(Top 75%)8619(Top 474%)
15K9.32 mi3.11 mi21780+4758718+2598718+25920765(Top 78%)8104(Top 71%)8104(Top 446%)
20K12.43 mi3.11 mi21630+1508627+918627+9121104(Top 79%)8299(Top 73%)8299(Top 457%)
Half13.11 mi0.68 mi21641-118632-58632-522022(Top 83%)8807(Top 77%)8807(Top 485%)
25K15.53 mi2.42 mi21639+28621+118621+1121827(Top 82%)8739(Top 77%)8739(Top 481%)
30K18.64 mi3.11 mi216398633-128633-1221665(Top 81%)8720(Top 76%)8720(Top 480%)
20M20.00 mi1.36 mi21726-878691-588691-5822539(Top 85%)9271(Top 81%)9271(Top 510%)
21M21.00 mi1.00 mi21713+138695-48695-421084(Top 79%)8510(Top 74%)8510(Top 468%)
35K21.75 mi0.75 mi21630+838662+338662+3319665(Top 74%)7748(Top 68%)7748(Top 426%)
23M23.00 mi1.25 mi21552+788630+328630+3220317(Top 76%)8146(Top 71%)8146(Top 448%)
24M24.00 mi1.00 mi21473+798598+328598+3219866(Top 75%)7907(Top 69%)7907(Top 435%)
40K24.85 mi0.85 mi21394+798564+348564+3419614(Top 74%)7851(Top 69%)7851(Top 432%)
25.2M25.20 mi0.35 mi21333+618538+268538+2619437(Top 73%)7770(Top 68%)7770(Top 428%)
Finish26.22 mi1.02 mi21355-228559-218559-2121900(Top 82%)9070(Top 79%)9070(Top 499%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

20765

Females

8104

F45-49

8104

5K→10K

3.1 - 6.2 mi

Top 81%
×5story building
+79ft-138ft

Overall

21629

Females

8619

F45-49

8619

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

20765

Females

8104

F45-49

8104

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

21104

Females

8299

F45-49

8299

20K→Half

12.4 - 13.1 mi

Top 83%
×2story building
+19ft-37ft

Overall

22022

Females

8807

F45-49

8807

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

21827

Females

8739

F45-49

8739

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

21665

Females

8720

F45-49

8720

30K→20M

18.6 - 20.0 mi

Top 85%
×5story building
+64ft-50ft

Overall

22539

Females

9271

F45-49

9271

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

21084

Females

8510

F45-49

8510

21M→35K

21.0 - 21.8 mi

Top 74%
×7story building
+17ft-86ft

Overall

19665

Females

7748

F45-49

7748

35K→23M

21.8 - 23.0 mi

Top 76%
×5story building
+23ft-63ft

Overall

20317

Females

8146

F45-49

8146

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

19866

Females

7907

F45-49

7907

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

19614

Females

7851

F45-49

7851

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

19437

Females

7770

F45-49

7770

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2story building
+22ft-21ft

Overall

21900

Females

9070

F45-49

9070

Passing Analysis

Category:
Athletes Passed
2103
Passed By
694
Net Change
+1409
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22764
5K → 10K57465+509#22764#22255
10K → 15K49419+475#22255#21780
15K → 20K20454+150#21780#21630
20K → Half2132-11#21630#21641
Half → 25K109107+2#21641#21639
25K → 30K1411410#21639#21639
30K → 20M32119-87#21639#21726
20M → 21M6148+13#21726#21713
21M → 35K863+83#21713#21630
35K → 23M10628+78#21630#21552
23M → 24M889+79#21552#21473
24M → 40K9718+79#21473#21394
40K → 25.2M643+61#21394#21333
25.2M → Finish2648-22#21333#21355
TOTALS2103694+1409
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing